With personal license only on one.
Almost all computers, with maybe a few exceptions, have Windows 7 pre-installed on them. That is, only if it is a Windows computer, as Apple computers don't have Windows OS.
Windows 7 cannot be used on multiple computers. The license is only good for one computer unless you buy a corporate license which allows you to install it on multiple computers.
The faster windows Operating System depends upon what you are planing to install it on. But in the majority of cases, windows Xp is faster on older computers. And Windows 7 is faster on newer computers.
Yes, you can but you have to install Windows 7 in another partition.
Apple computers use their own operating system called Mac OS X. Windows 7 can be purchased and installed on a MacBook if required.
Yes. You can install and play games in Windows 7.
spss 17.0 install for windows 7 and working
You can install Windows 7 from optical drive (CD, DVD), hard drive (a local copy), network or USB device.
No. You can install windows 8 directly from a USB or CD.
If you have Windows 7 Professional, Enterprise, or Ultimate you can install Windows XP Mode. Or if you want to downgrade you can do a clean install of Windows XP with an installation disk.
Windows 7 is commonly used on client computers.
You can install Windows 7 including SP1. To only install Service Packs you will need the base operative-system.